Hybrid nanoporous pigment - cellulose nanomaterial composites for printed energy storage applications

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

We report pilot-scale manufactured low-cost pigment-cellulose nanofibril (PCNF) composite and its application as a separator-substrate in printed graphene and carbon nanotube supercapacitors. The developed low-cost nanoporous composites utilize novel raw materials based on micro- and nanoscale cellulose and inorganic pigment. In this study we varied composition of kaolin pigments and cellulose micro- or nanofibrils (CMF /CNF) fibrillated with different methods: grinding, fluidization and enzymatic. Totally four different CMF and CNF grades were tested in composites. We concluded that from unbleached softwood kraft pulp ground lignocellulose nanofibrils (LCNF), in mass portion of 20%, produced stiff and flexible film structures together with kaolin pigments (80%) and simultaneously had a good dewatering profile. Really smooth and even surfaces can be also manufactured from TEMPO oxidized cellulose nanofibrils (TCNF) and kaolin, but due to TCNF high fibrillation degree and relative surface area the dewatering of composites was a challenge. Overall, higher kaolin amounts (80%) improved dimensional stability of composites compared to lower amounts (50%) and the drying shrinkage during film forming was controllable. The forming parameters like pre-drying of composites, using of polyelectrolytes and activation method of cellulose micro or nanofibrils have a significant effect on the film properties like surface formation and smoothness. It was also demonstrated that in addition to the smoothness, the porosity is the most relevant property for the substrate. A semi-industrial scale pilot line was successfully used to produce smooth, flexible and nanoporous composites and their performance was tested in a double functional separator-substrate element in supercapacitors. Further, the nanostructural carbon films printed on the composite worked simultaneously as high surface area active electrodes and current collectors. Environmentally friendly materials used in low-cost supercapacitors have a potential to be used in flexible, wearable and disposable low-end products.
Original languageEnglish
Title of host publicationBook of Abstracts
PublisherTAPPI Press
Publication statusPublished - 2016
EventTAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2016 - Grenoble, France
Duration: 13 Jun 201616 Jun 2016

Conference

ConferenceTAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2016
Abbreviated titleNANO 2016
CountryFrance
CityGrenoble
Period13/06/1616/06/16

Fingerprint

Nanostructured materials
Pigments
Cellulose
Energy storage
Kaolin
Composite materials
oxidized cellulose
Dewatering
Separators
Drying
Substrates
Costs
Carbon Nanotubes
Graphite
Kraft pulp
Softwoods
Dimensional stability
Carbon films
Fluidization
Polyelectrolytes

Keywords

  • pigment
  • nanocellulose
  • energy storages
  • nanoporosity
  • composite
  • cellulose nanofibrils (CNF)

Cite this

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title = "Hybrid nanoporous pigment - cellulose nanomaterial composites for printed energy storage applications",
abstract = "We report pilot-scale manufactured low-cost pigment-cellulose nanofibril (PCNF) composite and its application as a separator-substrate in printed graphene and carbon nanotube supercapacitors. The developed low-cost nanoporous composites utilize novel raw materials based on micro- and nanoscale cellulose and inorganic pigment. In this study we varied composition of kaolin pigments and cellulose micro- or nanofibrils (CMF /CNF) fibrillated with different methods: grinding, fluidization and enzymatic. Totally four different CMF and CNF grades were tested in composites. We concluded that from unbleached softwood kraft pulp ground lignocellulose nanofibrils (LCNF), in mass portion of 20{\%}, produced stiff and flexible film structures together with kaolin pigments (80{\%}) and simultaneously had a good dewatering profile. Really smooth and even surfaces can be also manufactured from TEMPO oxidized cellulose nanofibrils (TCNF) and kaolin, but due to TCNF high fibrillation degree and relative surface area the dewatering of composites was a challenge. Overall, higher kaolin amounts (80{\%}) improved dimensional stability of composites compared to lower amounts (50{\%}) and the drying shrinkage during film forming was controllable. The forming parameters like pre-drying of composites, using of polyelectrolytes and activation method of cellulose micro or nanofibrils have a significant effect on the film properties like surface formation and smoothness. It was also demonstrated that in addition to the smoothness, the porosity is the most relevant property for the substrate. A semi-industrial scale pilot line was successfully used to produce smooth, flexible and nanoporous composites and their performance was tested in a double functional separator-substrate element in supercapacitors. Further, the nanostructural carbon films printed on the composite worked simultaneously as high surface area active electrodes and current collectors. Environmentally friendly materials used in low-cost supercapacitors have a potential to be used in flexible, wearable and disposable low-end products.",
keywords = "pigment, nanocellulose, energy storages, nanoporosity, composite, cellulose nanofibrils (CNF)",
author = "Katariina Torvinen and Panu Lahtinen and Ker{\"a}nen, {Janne T.} and Jari Vartiainen",
year = "2016",
language = "English",
booktitle = "Book of Abstracts",
publisher = "TAPPI Press",
address = "United States",

}

Torvinen, K, Lahtinen, P, Keränen, JT & Vartiainen, J 2016, Hybrid nanoporous pigment - cellulose nanomaterial composites for printed energy storage applications. in Book of Abstracts. TAPPI Press, TAPPI International Conference on Nanotechnology for Renewable Materials, NANO 2016, Grenoble, France, 13/06/16.

Hybrid nanoporous pigment - cellulose nanomaterial composites for printed energy storage applications. / Torvinen, Katariina; Lahtinen, Panu; Keränen, Janne T.; Vartiainen, Jari.

Book of Abstracts. TAPPI Press, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

TY - CHAP

T1 - Hybrid nanoporous pigment - cellulose nanomaterial composites for printed energy storage applications

AU - Torvinen, Katariina

AU - Lahtinen, Panu

AU - Keränen, Janne T.

AU - Vartiainen, Jari

PY - 2016

Y1 - 2016

N2 - We report pilot-scale manufactured low-cost pigment-cellulose nanofibril (PCNF) composite and its application as a separator-substrate in printed graphene and carbon nanotube supercapacitors. The developed low-cost nanoporous composites utilize novel raw materials based on micro- and nanoscale cellulose and inorganic pigment. In this study we varied composition of kaolin pigments and cellulose micro- or nanofibrils (CMF /CNF) fibrillated with different methods: grinding, fluidization and enzymatic. Totally four different CMF and CNF grades were tested in composites. We concluded that from unbleached softwood kraft pulp ground lignocellulose nanofibrils (LCNF), in mass portion of 20%, produced stiff and flexible film structures together with kaolin pigments (80%) and simultaneously had a good dewatering profile. Really smooth and even surfaces can be also manufactured from TEMPO oxidized cellulose nanofibrils (TCNF) and kaolin, but due to TCNF high fibrillation degree and relative surface area the dewatering of composites was a challenge. Overall, higher kaolin amounts (80%) improved dimensional stability of composites compared to lower amounts (50%) and the drying shrinkage during film forming was controllable. The forming parameters like pre-drying of composites, using of polyelectrolytes and activation method of cellulose micro or nanofibrils have a significant effect on the film properties like surface formation and smoothness. It was also demonstrated that in addition to the smoothness, the porosity is the most relevant property for the substrate. A semi-industrial scale pilot line was successfully used to produce smooth, flexible and nanoporous composites and their performance was tested in a double functional separator-substrate element in supercapacitors. Further, the nanostructural carbon films printed on the composite worked simultaneously as high surface area active electrodes and current collectors. Environmentally friendly materials used in low-cost supercapacitors have a potential to be used in flexible, wearable and disposable low-end products.

AB - We report pilot-scale manufactured low-cost pigment-cellulose nanofibril (PCNF) composite and its application as a separator-substrate in printed graphene and carbon nanotube supercapacitors. The developed low-cost nanoporous composites utilize novel raw materials based on micro- and nanoscale cellulose and inorganic pigment. In this study we varied composition of kaolin pigments and cellulose micro- or nanofibrils (CMF /CNF) fibrillated with different methods: grinding, fluidization and enzymatic. Totally four different CMF and CNF grades were tested in composites. We concluded that from unbleached softwood kraft pulp ground lignocellulose nanofibrils (LCNF), in mass portion of 20%, produced stiff and flexible film structures together with kaolin pigments (80%) and simultaneously had a good dewatering profile. Really smooth and even surfaces can be also manufactured from TEMPO oxidized cellulose nanofibrils (TCNF) and kaolin, but due to TCNF high fibrillation degree and relative surface area the dewatering of composites was a challenge. Overall, higher kaolin amounts (80%) improved dimensional stability of composites compared to lower amounts (50%) and the drying shrinkage during film forming was controllable. The forming parameters like pre-drying of composites, using of polyelectrolytes and activation method of cellulose micro or nanofibrils have a significant effect on the film properties like surface formation and smoothness. It was also demonstrated that in addition to the smoothness, the porosity is the most relevant property for the substrate. A semi-industrial scale pilot line was successfully used to produce smooth, flexible and nanoporous composites and their performance was tested in a double functional separator-substrate element in supercapacitors. Further, the nanostructural carbon films printed on the composite worked simultaneously as high surface area active electrodes and current collectors. Environmentally friendly materials used in low-cost supercapacitors have a potential to be used in flexible, wearable and disposable low-end products.

KW - pigment

KW - nanocellulose

KW - energy storages

KW - nanoporosity

KW - composite

KW - cellulose nanofibrils (CNF)

M3 - Conference abstract in proceedings

BT - Book of Abstracts

PB - TAPPI Press

ER -